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Questions tagged [ext4]

The ext4 or fourth extended filesystem is a journaling file system for linux/*nix developed as the successor to ext3.

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Turn off write barriers on ext4 whiche FS is mounted

I am doing some IO intensive DB imports that run for several days now and the IO performance has dropped tremendously over times. The DB data files (log files) are on an ext4 formatted logical volume which is mounted with default options (did not…
user462982
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Store and backup 200 million small files

My disk are 10x1TB SAS 7200 RPM in a RAID 10 with a MegaRaid 9260 hardware controller with cache/BBU. This results in a 4.6TB RAID 10 volume. hdparm -t (when device is empty) results in 500MB/s. RAID chunk size is 64KB, filesystem block size is 2KB…
cedivad
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sharing an ext3/ext4 partition on external drive

is there a way of sharing an ext3/ext4 formatted partition on an external USB drive between different users (uids) on different Linux machines without creating a group for this purpose, setting the group ownership of the partition to this group and…
tmaric
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25TiB for /home from 16TiB, what to do with ext3?

I have recently lvextend my logical volume (where /home is) from 16TiB to 25TiB. However, when I try to run extend2fs on my /dev/vtrak/home, it complains that resize2fs 1.41.12 (17-May-2010) resize2fs: File too large while trying to determine…
Dat Chu
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Ubuntu 10.10 Maverick Server makes system locks up at random intervals (i7 930; 12GB RAM)

To introduce: I have a machine with the following specs: Intel Core i7 930 12GB Ram Corsair 2xSamsung HDD 320gb (No Raid, just partitions) Asus P6TD Deluxe The machine has been at Datacenter just a few days. The average load is 0.50 and I have…
Rodrigo
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Should use EXT4 or XFS to be able to 'sync'/backup to S3?

It's my first message here, so bear with me... (I have already checked quite a few of the "Related Questions" suggested by the editor) Here's the setup, a brand new dedicated server (8GB RAM, some 140+ GB disk, Raid 1 via HW controller, 15000…
Rafa
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How can I disable ext4 has_journal option on dedicated server?

I have Ubuntu 10.04 dedicated server with SSD drive. Hence I want to disable the file system journal. Normally this can be done like this "tune2fs -O ^has_journal /dev/md2". However the root file system is in read-write mode so tune2fs prints an…
Greg Dan
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How to check (fsck) a filesystem on a md device (linux/mdadm)

I have a partition lying on a software raid device, /dev/md4 On boot, fsck fails and the partiton cannot be mounted. Trying to fsck manually, I get an error: sudo fsck /dev/md4 fsck from util-linux-ng 2.17.2 e2fsck 1.41.11 (14-Mar-2010) fsck.ext4:…
alci
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Questions for Ext3/4 Features ( dir_index,filetype) and XFS File system Performance

I am developing an applications which reads huge list of directories and check file types using file command and using ext4 file system. When i look into Ext4 , i see it have two interesting features dir_index filetype i just enabled both…
Phyo Arkar Lwin
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Restoring data from corrupted ext4 partition under LVM - fsck or repair bad blocks first?

I am using Linux on my notebook. My notebook recently fall on ground and now I am trying to save as much data from my damaged hdd as possible. I can boot notebook from Linux live CD. Long story short: one ext4 partition is not mountable, but I can…
Stepan
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Can I unformat an NTFS volume that was formatted as ext4?

No data was written to it. Is there a tool that will allow me to do it? I would prefer a free tool, but please recommend non-free if only such software can do the job.
michal
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Where to get comprehensive list of tune2fs/tune4fs options per filesystem?

tune4fs can use many undocumented (I mean they are not yet in man tune4fs) options for ext4 filesystem. For example, huge_file, flex_bg, dir_nlink, extra_isize and some others. Is there a comprehensive list of them with description what each option…
Vladislav Rastrusny
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How to Root volume partition without losing the data

We have this scenario : I to increase the disk space of one of our VM, Disk details : root@Test-01:~# blkid /dev/vda2: UUID="0eae0eb4-92ed-45ec-aa99-6d606f17e70a" TYPE="swap" PARTUUID="06cf22a2-02" /dev/vda1:…
sam23
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Extremely slow MySQL writes in Ubuntu (ext4) guest on Promox 7.3-3 (ZFS) host

I'm trying out Proxmox 7.3-3 as a hypervisor and managed to install it using ZFS on my NVMe (Samsung_SSD_970_EVO_Plus_2TB_S6S2NS0T505403V) I also installed a Ubuntu 22.04 VM and its filesystem is ext4 Next, I installed MySQL server (8.0.32) I…
bilogic
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ext4 in debian 5 (2.6.26)

Is ext4 ready for production usage in debian 5 (with linux kernel version 2.6.26) ? Will it be stable, oops-free and bug-free?
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